Nginx not finding a directory in its path

[Ken Wright]

I've been trying to install Roundcube on my server, but when I get to
the web installer (enter mail.example.com/installer in the address bar
of my browser) I consistently get 404.  The webroot is
/var/www/roundcube, and there's an installer directory under that with
an index file in it.  I just can't figure out why it's misbehaving (or,
more accurately, what I haven't correctly told it to do).

The server is Ubuntu 22.04, and my nginx version is i.21.6.

Ken

-- 
If you ever think international affairs make sense, remember this:
Because a Serb shot an Austrian in Bosnia, Germany invaded Belgium
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